NoMethodError "Read" for URI


#1

Hey Everyone,

I have a pretty interesting problem that I thought I would try and get
some feedback on. The following method below accepts a URL string as a
parameter ex “http://www.google.com,” and it uses regular expressions
to try and find the images in the html. The odd thing is… that I
have tested it over and over again… and it has always grabbed the
images and worked exactly as I coded it too, but lately it has been
telling me that the URI class doesn’t have a read method… when it
must because I have been using it!

I am just so confused why rails would suddenly have this issue, and I
am wondering if anyone can make heads or tails out of it. The code is
posted below.

Thanks!

<================== CODE ===========================================>

def get_images(url)
@image_links = []

if validate_link(url) == false
  return @image_links
end

if ((url =~ /\.jpg/)||(url =~ /\.png/)||(url =~ /\.gif/)) == nil
    begin
      uri = URI.parse(url)
      str = uri.read
      host = uri.host
    rescue SystemCallError
      return @image_links

    end


    @body = str.scan(/<body.+<\/body>/)
    @images = str.scan(/(src=\"http.+\.jpg?\")/)
    str = @images.to_s
    @images = str.scan(/\".+?\"/)
    @image_links = filter_images(@images)
    @image_links.push("no_image.jpg")
else
      @image_links.push(url)
      @image_links.push("no_image.jpg")
end

return @image_links

end


#2

oh and I thought I should provide the error message itself:

NoMethodError (undefined method `read’ for #URI::HTTP:0x256f764):


#3

On 24 Jan 2009, at 10:39, cdubd wrote:

oh and I thought I should provide the error message itself:

NoMethodError (undefined method `read’ for #URI::HTTP:0x256f764):

URI does not have an read method. OpenURI adds one, so the logical
conclusion for me is that something in your environment has changed
that results in openuri not having been required when previously it was.

Fred


#4

Thanks Fred,

I checked it out, and you were right. Open-URI is required now, and it
works like a charm.

Casen

On Jan 24, 2:11 pm, Frederick C. removed_email_address@domain.invalid